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SPMD150STP Datasheet(PDF) 2 Page - STMicroelectronics

Part # SPMD150STP
Description  1.5 A stepper motor driver module
PDF  23 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

SPMD150STP Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
SPMD150STP
2/23
Doc ID 17160 Rev 1
Contents
1
Block diagram and pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2
Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Function description and application information . . . . . . . . . . . . . . . . 11
4.1
Power stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2
Logic interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.3
PWM current controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.4
Decay modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4.5
Stepping sequence generation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5.1
Half step mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.5.2
Normal drive mode (full-step two-phase-on) . . . . . . . . . . . . . . . . . . . . . 17
4.5.3
Wave drive mode (Full-step one-phase-on) . . . . . . . . . . . . . . . . . . . . . . 17
4.5.4
Microstepping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.6
Non-dissipative overcurrent protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.7
Thermal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.8
Case grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22



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